support/scripts/pkg-stats: drop unused --cpeid option

The --cpeid option was mistakenly introduced by commit
92e7089a8ca9f7dba5a5d690b7f768352cd6b983 ("support/script/pkg-stats:
show CPE ID in results") but is in fact not necessary.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

support/scripts/pkg-stats

@@ -1052,7 +1052,6 @@ def parse_args():
                           help='List of packages (comma separated)')
     parser.add_argument('--nvd-path', dest='nvd_path',
                         help='Path to the local NVD database', type=resolvepath)
-    parser.add_argument("--cpeid", action='store_true')
     args = parser.parse_args()
     if not args.html and not args.json:
         parser.error('at least one of --html or --json (or both) is required')